Features
Physical Data
5.450 in / 138.43 mm
Cartridge Length
1,718 grains / 111.32 grams
Cartridge Weight
619grains/40gramsFMJ (copper) boat tail withhardenedsteel coreand incendiaryand tracer composition
Bullet
Minimum of 200 lb (90.72 kg)
Bullet Extraction
Gray /Red
Tip Identification
Manufacturer symbol (LC or WMA) and the year of manufacture
Headstamp
Brass (Copper Alloy No. 260)
Cartridge Case Material
50M, Boxer Style
Primer Type
Performance
U.S. Military: • MIL-DTL-3066 • MIL-STD-636 • MIL-STD-1916 • Drawing: 7672003
Manufacture Specifications
2,905 ft/s ± 30 ft/s (78 ft frommuzzle) @ 70 ± 2° F / 885m/s ± 9m/s (24 m frommuzzle) @21 ± 2° C
Muzzle Velocity
Average maximum: 60,500 psi @ 70° F (417 Mpa @ 21° C)
Chamber Pressure
Average mean radii maximum: 12 in @ 600 yds (30.5 cm@ 549 m)
Accuracy
Visible trace 100 yds to 1,600 yds (91 m to 1,463 m)
Trace Performance
Perforate 7 ⁄ 8 in thick armor plate at 100 yds (2.2 cm thick at 91 m)
Penetration
-65° F to 125° F (-54° C to 52° C)
Operating Range
For use in standard 12.7 x 99 mm chambers only
Note
More Info » winchestermilitary.com
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